Rankings
Publications
Search Publications
Cited-By Search
Sources
Publishers
Scholars
Scholars
Top Cited Scholars
Organizations
About
Login
Register
Home
Publications
Heritability of Growth and Efficiency in Beef Cattle
Home
Publications
Heritability of Growth and Efficiency in Beef Cattle
Heritability of Growth and Efficiency in Beef Cattle
BK
Bradford Knapp
Bradford Knapp
AN
Arne W. Nordskog
Arne W. Nordskog
Publisher Website
Google Scholar
Add to library
Cite
Download
Share
Download
1 February 1946
journal article
research article
Published by
Oxford University Press (OUP)
in
Journal of Animal Science
Vol. 5
(1)
,
62-70
https://doi.org/10.2527/jas1946.5162
Abstract
A study was made of the records from 177 steer calves from 23 sires at the U. S. Range Livestock Experiment Station, Miles City, Montana, to estimate the relative effect of heredity on weights, gains and efficiency of gain. Two methods were used, namely: The intra-sire correlation obtained by analysis of variance, and the sire: progeny regression obtained by covariance analysis. Heritabilities obtained from intra-sire correlations for the various weights and gain were: birth weight 23 percent; weaning weight 12 percent; final feed lot weight 81 percent; gain in the feed lot 99 percent and efficiency of gain 75 percent. Heritabilities obtained from sire: progeny regression were: birth weight 42 percent; weaning weight 0 percent; final weight 69 percent; daily gain 46 percent; and efficiency of gain 54 percent. When adjustments were made for differences in feeding for the sires each year, the heritability was found to be 34 percent for birth weight, 30 percent for weaning weight, 94 percent for final weight, 97 percent for daily gain and 48 percent for efficiency of gain. The estimates of heritability obtained from these data are higher than seems reasonable and the cause or causes of these high estimates are not known. Meanwhile, these results are interpreted to indicate that the breeder and feeder of beef cattle can take encouragement from this report with respect to selection of cattle for both rate of gain and efficiency of feed utilization. Copyright © . .
Keywords
CATTLE/BREEDING
All Articles
Open Access
Cited by 22 articles